Smartvessel: A New Extinguisher Prototype Based on New Materials and IoT Sensors.

Smartvessel is an innovative fire extinguisher prototype supported by new materials and IoT technology that seeks to improve the functionality and efficiency of conventional fire extinguishers. Storage containers for gases and liquids are essential for industrial activity as they enable higher energy density. The main contributions of this new prototype are (i) innovation in the use of new materials that provide lighter and more resistant extinguishers, both mechanically and against corrosion in aggressive environments. For this purpose, these characteristics are directly compared in vessels made of steel, aramid fiber and carbon fiber with the filament winding technique. (ii) The integration of sensors that allow its monitoring and provide the possibility of predictive maintenance. The prototype is tested and validated on a ship, where accessibility is complicated and critical. For this purpose, different data transmission parameters are defined, verifying that no data are lost. Finally, a noise study of these measurements is carried out to verify the quality of each data. Acceptable coverage values are achieved with very low read noise, on average less than 1%, and a weight reduction of 30% is obtained.

¿Puede ser una apendicitis aguda la primera manifestación de endometriosis? / Can acute appendicitis be the first manifestation of endometrial disease?

Objetivo. Demostrar la relación entre la afectación endometriósica del apéndice cecal y el desarrollo de una apendicitis aguda. Pacientes y métodos. Presentamos una serie institucional de 8 pacientes con endometriosis apendicular diagnosticadas tras apendicectomía entre junio de 2009 y marzo de 2014. Resultados. La media de edad fue 40,6 años, 6 en edad fértil. En 5 (62,5%) la afectación endometriósica apendicular resultó única y en 3 (37,5%) múltiple, fundamentalmente en el ovario. Siete (87,5%) iniciaron los síntomas como una apendicitis aguda. Los implantes endometriósicos afectaban la capa serosa en 6 pacientes, la capa muscular en una y la grasa periapendicular en otra. Conclusión. El diagnóstico de endometriosis apendicular en mujeres con apendicitis aguda solo se puede realizar tras el examen de las piezas de apendicectomía, aunque puede ser sospechado en el contexto clínico. La laparoscopia permite un diagnóstico adecuado con exploración completa de la pelvis, la apendicectomía y el tratamiento de otras lesiones (AU)

Aim. To determine the relationship between endometriotic involvement of the appendix and the development of acute appendicitis. Patients and methods. We report a series of 8 patients with appendiceal endometriosis diagnosed after appendicectomy from June 2009 to March 2014. Results. The mean age was 40.6 years. Six patients were of reproductive age. Endometriotic appendiceal involvement alone was found in 5 patients (62.5%) and multiorgan involvement, mainly affecting the ovary, in 3 patients (37.5%). Clinical presentation was acute appendicitis in 7 patients (87.5%). Endometriotic implants involved the serous layer in 6 patients, the muscle layer in one patient, and periappendiceal fat in another patient. Conclusion. Diagnosis of appendiceal endometriosis in women with acute appendicitis can only be performed after specimen study, although it may be suspected in the clinical context. Laparoscopy allows pelvic and abdominal cavity examination, appendectomy, and the treatment of other lesions (AU)

Invaginación yeyuno-gástrica tras gastrectomía tipo Billroth II / Jejuno-gastric invagination after Billroth II gastrectomy

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Breast cancer stem cell hypothesis: clinical relevance (answering breast cancer clinical features).

The cancer stem cells hypothesis arises from observation of normal tissue hierarchy and the demonstration of stem cells in normal tissues. Scientists continue to debate whether the putative cancer cells derive from the transformation of normal tissue stem cells or from more differentiated cells. The existence of a subpopulation of tumour cells with stem-cell-like characteristics, including very slow replication and resistance to standard chemotherapy, posses a novel therapeutic challenge. This review summarises the state of development of normal and cancer breast cells and the clinical and therapeutic relevance.

Two rare cases of intrahepatic subcapsular hematoma after laparoscopic cholecystectomy.

The appearance of subcapsular liver hematoma after a laparoscopic cholecystectomy (LC) is an infrequent complication and seldom studied. Some cases have been connected to ketorolac given during surgery and after surgery. Other described causes are : hemangiomas or small iatrogenic lesions that could be aggravated by administration of ketorolac. Coagulation dysfunction like circulating heparin as seen in hemathological diseases is cause of bleeding after aggressive procedures. We describe two cases of subcapsular liver hematoma after LC, both of them have been given intravenous ketorolac and one of them had multiple myeloma. We discuss the causes and treatment of it.

El doctor Don alfonso Espinola Vega, medico canario del siglo pasado en el Uruguay / Dr. Espinola Don Alfonso Vega, canary physician of the last century in Uruguay

Espínola was born in Teguise (Lanzarote) in 1845. He studied medicine in Cadiz and moved to Montevideo in 1878. He performed his great medico-social and philantropic work in Las Piedras. He died in San José de Mayo in 1905. Some biographic notes through several journalist sources from Uruguay and Canary Islands are presented. (AU)